Preparation method of polyurethane bedding article capable of permanently releasing anions

Abstract

The invention provides a preparation method of a polyurethane bedding article capable of permanently releasing anions. The polyurethane bedding article comprises the following components (in parts by weight): 100 parts of polyether polyol 100, 2.0-3.0 parts of silicone oil, 1.0-4.2 parts of a foaming agent, 0.2-0.8 part of a tertiary amine catalyst and 0.1-0.4 part of stannous octoate as a component A, and 1-10 parts of anion mineral powder and 20-40 parts of isocyanate. The method comprises the following technological processes: (1) preparation of the component A, namely sequentially adding the polyether polyol, the silicone oil, the foaming agent and the catalyst to a reaction container A, and stirring evenly at a high speed for later use; (2) preparation of the component B, namely adding isocyanate to a reaction container B, adding anion mineral powder at a high speed, and further reacting at 40-80 DEG C for 1-5 hours for later use; and (3) preparation of the polyurethane bedding article, namely mixing the component A with the component B for 1-5 minutes, immediately pouring into a mold, foaming, curing, and then cutting into a certain size. The anion release amount of the polyurethane bedding article synthesized by the method is lasting and stable.

Description

technical field [0001] The invention belongs to the field of bedding, and in particular relates to a method for preparing a polyurethane bedding that permanently releases negative ions. Background technique [0002] With the rapid development of human science and technology and the continuous improvement of people's quality of life, the lack of creative products can no longer meet the requirements. The concept of health, comfort and environmental protection has gradually formed in people's minds, so various new, healthy and environmentally friendly products Functional materials began to enter people's lives. Studies have shown that many ores have piezoelectricity and pyroelectricity, and will release negative ions that are beneficial to human health under the influence of the environment, giving people a feeling of refreshment and refreshment. Functions are regulated and the body's metabolism is promoted, thereby improving people's physical fitness and work efficiency. Bas...

AI Technical Summary

Problems solved by technology

[0009] The above patents are mainly formed by simple structural combination of articles capable of generating negative ions and bedding, or modifying negative ion mineral powder by surface modifiers to improve the compatibility of negative ion mineral powder and polyurethane, but the negative ion Mineral powder is only mechanically combined on the bedding or filled in the bedding material. The bonding force between the two is poor and does not form an organic whole, which affects the mechanical properties of the material to a certain extent.

Especially in porous polyurethane bedding, due to the existence of cells, if the combination of negative ion mineral powder and polyurethane molecules is not good, it will easily lead to the collapse of the cells of the porous polyurethane bedding, resulting in shortened product life and less negative ion release. and other defects